<%= javascript_include_tag "//cdnjs.cloudflare.com/ajax/libs/jquery/1.11.0/jquery.min.js"%> <%= javascript_include_tag "/assets/lib/jquery-ui-1.12.1/jquery-ui.min" %> <%= render :template => 'layouts/back_end' %> <%= stylesheet_link_tag "jquery-ui-timepicker-addon" %>